Cultivator



March 22 1927.

' W. P. ALLEN ET AL CULTIVATOR Filed Sept. i4. 1925 ATTORNEYS Patented Mar. 22, 1927.

UNITED STATES 1,621,764 PATENT OFFICE.

WESLEY P. ALLEN AND ELBER'I I-I. FINGHER, OF MANNSVILLE, OKLAHOMA.

ce'mvaeos.

Application filed September My invention relates to improvements in cultivators, and it consists in the combinations, constructions, and arrangements here in described and claimed.

In many cultivators in ordinary use today there are two beams with discs, or other ground working tools attached thereto, these "beams being carried by a vehicle which straddles the row so that the dirt is worked on each side of the row. This is the ordinary one-row cultivator. It is necessary in such a device to work one row at a time, since it is only by so doing that the space between the rows can be worked.

Our invention has for one object to provide means whereby the same beams on op posite sides of the row may be used in connection with certain attachments thereto to cultivate two rows, thereby resulting in an economy of operation.

A further object is to provide a cultivator attachment in which plows and discs are used, which attachment is light, and in which the discs are adjustable for rows of different widths.

A further object is to provide a device of the type described in which a perfect mulch is made between the rows.

Other objects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed out in the appended claim.

Our invention is illustrated in the accompanying dr. wings, forming part of this application, in which- 7 Figure 1 is a plan view of the attachment,

Figure 2 is a side elevation, and

Figure 3 is a sectional view through a portion of a disc mounting.

Referring to the drawings, we have shown therein portions of an ordinary one-row cultivator including the wheels 1, the axle 2, and the beams 3, these parts being old and forming no part of the invention, except as they cooperate with the attachments about to be described. The beams 3 in the ordinary form of cultivator have at their ends the plow shanks. Instead of using these shanks we make use of the attachment shown in the drawings. This consists of a cross head 4 which is attached to the end of each of the beams 3 by any suitable means such as the bolt 5 in Figure 2, this bolt passing through the opening in the end of the beam left by the removal of the ordinary plow shank. It will be observed that this 14, 1925. Serial m. 56,279.

cross head 4 extends laterally with respect to the beam 3 and is provided with bolt openings for the attachment of the auxiliary beams. These auxiliary beams consist of a central beam 6 which is secured to the main beam 3 by a. bolt 7 and side beams '8 on either side of the central beam 6, "which are secured to the cross head by bolts 9 which pass through the openings in the ends of the cross head. The beams 6 and 8 have at their ends, eyes 10 arranged to receive theshanks 11 and discs such as those shown at 12, while a cultivator attachment 13 has a shank 14 disposed in the eye of the central auxiliary beam 6. The shanks of the discs and of the cultivator are secured in position by means of set screws 15.

In order to provide for the adjustment of and which pass through the auxiliary beams 8.

The means for attaching the discs themselves to the shank forms a novel feature of our invention. In Figure 3, it will be observed that the shank 11 has secured'therei L to a plate 17 which loosely holds the head 18 of a shaft 19. Surrounding the shaft is a spindle 20 about which is a sleeve 21. This sleeve has a flange 22 to which the disc plate 23 is secured by means of bolts 24:. The plate 17 has an extension 25 on one side thereof which forms a thrust bearing. Between this thrust bearing and the spindle 20 is an adjustable washer 26' which tapers in thickness from one edge to the other. At the end of the spindle is a washer or plate 27 which is held by a nut 28 on the shaft 19. A dust cap 29 covers the washer and the nut 28.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. In assembling the device, as stated, the auxiliary beams are attached to the cross head 4 on the main beams 3. disc 12 may be moved toward or away from the central auxiliary beam 6 so as to cover the space between the rows, the auxiliary beams 8 swinging about their pivots 9 and being secured in position by means of the nuts 16, as stated.

In using the device, the wheels 1 straddle By means of the nuts 16 the r the row, the center of the row being parallel with the beams 3 and the latter being on each side of the row. The discs in being drawn along throw any amount of dirt desired to the row, while'the cultivator attachment 10 or plow behind the discs plows down the ridges which the discs leave, and at the same time create a perfect mulch. It will be understood that the beams 3 and the auxiliary beams attached thereto may be operated, i. e., lifted or lowered by the same means which would lift or lower the plows of the ordinary cultivator, which are ordinarily attached to the beams 3. Thus in Figure 2 we have shown a lever 80 for lifting or lowering the beams with their attachments and a locking segment 81 for holding them in any desired position. The elevating and lowering, however, of the beams and.

their attachments forms no part of the pres ent invention, except in so far as it co-operates with the parts which are novel.

When it is desired to change the positions of the discs with respect to their shafts, the dust cap 29 may be removed, the nut 28 taken ofi, together with the disc 27, and the sleeve 29, together with the disc plate may be removed. The adjusting washer 26 may then be turned to another position, which will shift the shaft 19, the head 18 of the shaft being, as stated, loosely mounted in the plate 17. Parts may be then replaced and the disc plate will have been shifted a different position with respect to the shank 11.

The device as described adds very little to the weight of the cultivator, and yet it provides means whereby two rows may be worked during one trip across the field, thus cutting down the operation of cultivating the field to substantially one-half the time.

The shanks of the discs or cultivator mem bers 13 may be easily removed or replaced by loosening or tightening the set screws. These set screws also permit the raising or lowering of the shank or the rotation of the discs to different positions, and the securing of the parts firmly in said shifted positions. By unloosening the set screws and removing the discs, plow points may be substituted for the discs.

. It will be seen that the construction above recited not only provides for varying the amount of cultivation between the rows, but also provides means for changing the nature of the cultivation, as by shifting from discs to plows, or vice versa.

We claim:

In an a 'ricultural implement, a pair of for holding each of said shanks in adjusted position, arcshaped rods secured to said extensions and arrangedto pass through said auxiliary beams, and means carried by the rods for securing said auxiliary beams in various angular positions with respect to the extensions.

' WESLEY P. ALLEN.

ELBERT H. FINCHER. 

